某220kV变压器长时感应电压带局部放电测量试验局放量超标分析  

Standard Analysis on Exceeding Volume of Long Induction Voltage Partial Discharge for a 220 kV Transformer

作　　者：牛李 应勇[2] 赵义松[2] 

机构地区：[1]辽宁人才派遣有限公司,辽宁沈阳110006 [2]辽宁省电力有限公司电力科学研究院,辽宁沈阳110006

出　　处：《东北电力技术》2013年第8期34-35,共2页Northeast Electric Power Technology

摘　　要：某220 kV变压器现场交接试验中,长时感应电压带局部放电测量试验三相局放量均超标,通过试验测量及原因分析,确定了放电位置,最终确认局放量超标原因是在安装三相高压套管时,套管末端均压罩未装紧固螺栓。经处理后,该主变通过了局部放电试验。In Field handover test of a 220 kV transformer, inducted voltage test and partial discharge test three-phase board volume all exceed the standard. Through testing method and analysis, the discharge position is located. Real reason for exceeding standard vol- ume is that in the installation of three-phase high voltage bushing, equalizing cover is fixed without fastening bolt in sleeve end. After processing the main transfurmer passed partial discharge test.

关 键 词：变压器 长时感应电压 局部放电 

分 类 号：TM41[电气工程—电器]